package cn.net.greenet.system.property;

import cn.net.greenet.db.HibernateUtil;
import cn.net.greenet.db.bean.Systemproperty;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import org.hibernate.Session;
import org.hibernate.SessionFactory;

/**
 * 批量的获取系统配置信息
 *
 * @author liangdelin
 */
@WebServlet(name = "GetListProperty", urlPatterns = {"/system/getlistproperty"})
public class GetListProperty extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        String property = request.getParameter("property");
        JSONArray jsonArr = JSONArray.fromObject(property);
        JSONArray returnJsonArr = new JSONArray();  //return jsonArr
        PrintWriter out = response.getWriter();
        SessionFactory sf = HibernateUtil.getSessionFactory();
        Session session = sf.openSession();
        session.clear();
        try {

            Systemproperty systemProperty;
            JSONObject jo;
            for (int i = 0; i < jsonArr.size(); i++) {
                systemProperty = (Systemproperty) session.get(Systemproperty.class, jsonArr.getString(i));
                jo = new JSONObject();
                jo.put(jsonArr.getString(i), systemProperty.getValue());
                returnJsonArr.add(jo);
            }
            out.println(returnJsonArr.toString());
        } catch (Exception e) {
            e.printStackTrace();
            out.println("[]");
        } finally {
            session.close();
            sf.close();
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
